Adding an Xcode Build Rule to compress PNGs Images in an iOS App can make up the majority of it size. This is especially true if it is a Universal App requiring it to have all image in triplicate (iPhone Standard, iPhone Retina iPad). The best type of image to use in an iOS App … Read more
First, the configurations “Debug” and “Release” are just names, you could also name them “Jon” and “Carla” if you want. They are just names for a configuration sets that you can modify and you can tweak them so that for example the “Debug” configuration is not suitable for debugging any more. So if you (accidentially) … Read more
Assuming your CSS is already happily rendering on your various size mobile device screens, you need to define the viewport in the <head> of your template. Example, this sets the page width to be the device’s screen width and an initial zoom of 100%. Initial zoom is applied at page load, but not when the … Read more
Toll-free bridging means that the data structures are interchangeable. It is just as simple as casting — that’s the “toll-free” part. Anyplace you can use the type on one side of the bridge, you can use the other. So, for example, you can create a CFString and then send NSString messages to it, or you … Read more
The problem is that a scheduledTimer will not get called while the main thread is tracking touches. You need to schedule the timer in the main run loop. So instead of doing [NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(updateLabel:) userInfo:nil repeats:YES]; use NSTimer* timer = [NSTimer timerWithTimeInterval:1.0f target:self selector:@selector(updateLabel:) userInfo:nil repeats:YES]; [[NSRunLoop mainRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];